diff options
| -rw-r--r-- | drivers/char/diag/diag_masks.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/diag/diag_masks.c b/drivers/char/diag/diag_masks.c index bb28958412ed..438f33d8cadb 100644 --- a/drivers/char/diag/diag_masks.c +++ b/drivers/char/diag/diag_masks.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2008-2018, The Linux Foundation. All rights reserved. +/* Copyright (c) 2008-2019, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -705,7 +705,7 @@ static int diag_cmd_get_msg_mask(unsigned char *src_buf, int src_len, mask_info = (!info) ? &msg_mask : info->msg_mask; if (!src_buf || !dest_buf || src_len <= 0 || dest_len <= 0 || - !mask_info) { + !mask_info || (src_len < sizeof(struct diag_build_mask_req_t))) { pr_err("diag: Invalid input in %s, src_buf: %pK, src_len: %d, dest_buf: %pK, dest_len: %d, mask_info: %pK\n", __func__, src_buf, src_len, dest_buf, dest_len, mask_info); |